mosope39
mosope39 mosope39
  • 03-08-2021
  • Mathematics
contestada

if √x-5 varies directly as y and x=30 when y= 2, find the value of x when y=8.​

Respuesta :

Аноним Аноним
  • 05-08-2021

Answer:

let,

√x-5=ky

x=30 when y=2

√30-5=2k

or, k=(√30-5)/2

now, when y=8

√x-5=8×(√30-5)/2

or, √x-5=4√30-20

or, √x=4√30-15

or, x=(4√30-15)²

or, x=47.73..

Answer Link

Otras preguntas

What is transferred by a force moving an object through a distance? A. force B. mass C. motion D. energy
Which part of the constitution established the legislative branch of the government
What three countries fought on the side of the colonist
Which sentence uses parallelism correctly? Students should be careful when driving to school because it can be dangerous and also makes them late. Voluntee
Burma is one of the countries that borders India. a. True b. False
Almost all animals share the following characteristics except A. cell walls. B. diploidy. C. heterotrophy. D. mobility.
Which type of soil is the most permeable?
He middle class grew out of a social class known as the A. helots. B. serfs. C. untouchables. D. bourgeoisie.
Aiden walked 1/8 of a mile in 1/16 of an hour. Compute the unit rate as the complex fraction
what are four types of asexual reproduction